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Word Study
coping
CIDE DICTIONARY
The highest or covering course of masonry in a wall, often with sloping edges to carry off water; -- sometimes called capping . Gwill. [1913 Webster]
OXFORD DICTIONARY
coping, n. the top (usu. sloping) course of masonry in a wall or parapet.
Idiom
coping-stone a stone used in a coping.
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